Closure



Dec. 29, 1931. J 5, 1,838,639

CLOSURE Filed Sept. 7, 1929 Lzucrzi'm I Patented Dec. 29, 1931UNITEDTSTATESPATENT orricr.

JAMES S. REID,

or- CLEVELAND, 01:10, AssIGnon TO THE EATON AXLE & srnme com- IANY, 0]!CLEVELAND, OHIO, A CORPORATION OF OHIO cnosunn application filedSeptember 7, 1929. Serial No. 390,867.

' This invention relates to closure devices,- and more particularly toan improved form of quick detachable cap or closure, ofthe type used inconnection with the filler necks for fluid containers, such asautomobile radiators and the like.

An object of this invention is to provide a closure having improved andsimplified means for connecting the locking member to the closure body.

Another object of this invention is to provide an improved form ofclosure structure comprising a minimum number of parts, Which can bereadily assembled without the requirement of machine operations.

The invention may be further brlefly sum marized as consisting incertain novel combinations and arrangements of arts hereinafterdescribed and set out in tlie appended claims.

In the accompanying sheet of drawings forming a part of thisapplication,

Figure 1 is a side elevational view of the closure of my invention withparts thereof broken away.

Figure 2 is a bottom plan view of my im. proved form of closure.

Figure 3 is a sectional view taken on line 3-3 of Figure 2, showing theclosure applied to a filler neck.

Figure 4. is a top plan view of a filler neck to which the closure of myinvention may be applied. I

Figure 5 is-a sectional view taken-on line I 55 of Figure 4, and

Figure 6 is a detail view of the locking member. e

The closure of my invention is of the quick detachable bayonet type,which may be applied to the end of a tubular member or con tainer fillerneck for closing the opening therein and releasably locked in positionon the neck by relative rotation between'the closure and the neck- Inthe drawings illustrating my invention 1 show a tubular member or fillerneck 10, having an annular flange 11 in its inner end, by means of whichthe filler neckmay be suitably secured to a fluid container 12 inalignment-with the opening 13 in the wall of the container. At its outerend the wall of the filler neck is bent to provide the laterallyextending flange 13, which serves as a gasket seat. Flanges'lt areturned inwardly from the annular flange 13, andare shaped to provideinclined cam portions or surfaces 15,

which are engaged .by portions of the closure for securing the same tothe filler neck.

These cam surfaces are arranged in diametrically opposed relation, andterminate at one end in the openings 16, which are formed through theannular flange 13 to afiord access to said cam portions, and at theother end terminate in dwells or depressions 17,- which are formedadjacent the depending stops 18.

The closure itself comprises a closure body 19 and a locking member 20carried thereby, which releasably secures the closure in position on thefiller neck to close the opening therein. The closure body may assumevarious shapes and may be constructed in various ways, but in thisinstance I show a closure body which is formed as a single casting, suchas a die casting, and is provided with a hollow depending central bossor extension 21, which carries the locking member 20. The body portion22 of the locking member is shaped to fit in the hollow extension and toabut against the annular shoulder 23' formed therein. The locking memberis provided with extensions or fingers 24, which engage the cam surface15, and which lie substantially in the plane of the body portion 22 andextend through openings 25 provided in the side wall of the extension.To increase the resiliency of the locking fingers arcuate slots 26 arecut through the locking member adjacent the junction of the lockingfingers with the body of the locking member. For securing the lockingmember in position with respect to the closure body I provide a flexiblemember or wire pin 27 having end portions 28 received in openingsprovided in the wall of the extension. The flexible member 27 isconstructed in thejorm of a pin having a plurality of reverse bends, alllying in substantially the same plane. j The pin constructed in thismanner resembles a spring of substantially sinusoidal shape, and when inassembled position holds the locking member against the shoulder but iscapable of being flexed to permit a slight movement of the lockingmember axially of the closure.

When the closure is applied to the filler neck opening the lockingfingers enter the openings 16 and upon rotation of the closure relativeto the neck, these locking fingers engage and follow the inclined camsurfaces, until they reach the dwells 17 where further rotationalmovement is arrested b the stops 18. The coaction between the ngers andthe cam surfaces results in the closure being drawn toward the end ofthe filler neck causing the annular head 29 to press the gasket 30 intosealin engagement with the flange 13.

In assem ling the parts of my closure the locking member is placed inthe hollow ex-- tension in abutting relation with'the annularshoulder/23. One end of the flexible member 27 is placed 'in one of theopenings provided in the extension wall, andthe member .is thencompressed to permit its other end to special tools or machineoperations. It will also be readily seen that this arrangement permitsthe locking member to be readily removed and replaced when damaged.

While I have shown and described the device of my invention in detailedmanner it shouldbe understood, however, that I do not desire to limit mself to the precise details shown and descri ed, but regard my inventionas including such changes and modifications as do not involve adeparture from the spirit of the invention and the scope of the appendedclaims.

Having thus described my invention I claim:

1. A closure for a tubular'member, comprising a body having 21.depending portion provided with a recess therein, a locking member insaid recess having fingers for releasably holding the closure on saidtubular member, and a flexible wire pin having its end portions receivedin openings provided in said body for securing said locking membeer insaid recess.

2. A closure for a tubular member comprising a body havin opposeddepending arcuate flanges, a locking member having a body portiondisposed between said flanges and 'havin fingers extending between theends of sald flanges for releasably holding the closure on said tubularmember, and a pin formed from strand material and provided with reversebends to 've the same flexibility and having its en portions received inopenings provided in said flanges for holding the locking member inassembled relation with the closure body.

3. A closure for a tubular member comprising a die-cast body formed witha depending portion having a recess therein, a locking member disposedin said recess and having fingers extending therefrom for releasablyholding the closure on said tubular member, and an extensible pin ofsubstantially sinusoidal shape having portions thereof received inopenings in said depending portion for securing said locking member insaid recess.

4.. A closure for a tubular member comprising a die-cast body formedwith a hollow extension having an integral annular shoulder therein, alocking member having a body portion disposed in said extension andabutting against said shoulder, said locking member having fingersextending laterally therefrom in substantially the plane of said bodyportion for holding the closure on said tubular member, and anextensible pin of substantially sinusoidal shape havin portions thereofin engagement with the we ls of said extension for retaining saidlocking member therein.

In testimony whereof, I hereunto aflix my signature.

JAMES S. REID.

